SPATIAL ORIENTATION OF THE SPIN VECTORS OF THE DISK GALAXIES IN THE VIRGO CLUSTER .1. A CATALOG OF THE DISK GALAXIES IN THE VIRGO CLUSTER

Based on four UK Schmidt Telescope (UKST) IIIa-j direct plates which h ad been digitized by the Automated Plate Measuring System (APM), a det ailed identification of the disk galaxies in the Virgo cluster has bee n carried out. The certain and possible member galaxies are mainly sel ected from the updated Catalogue of 2096 Galaxies in the Virgo Cluster Area (VCC). The area of this identification covers a similar to 85 sq uare degree region centered on this cluster, As a result, we compiled a new catalogue of 340 certain and possible member disk galaxies, incl uding 85 lenticulars (SO), 136 spirals (S) and 119 irregulars (In), wh ere the APM-measured values of the position angle (P.A.) and diameters of 299 disk galaxies are provided. For at least 149 galaxies, the val ues of the P.A. and diameters are published for the first time. Compar ison between the APM-measured P.A. and diameters of galaxies and those given by the Uppsala General Catalog of Galaxies (UGC) demonstrates t he reliability of our data. The statistical properties and completenes s of this database are also discussed. Compared with the UGC-given P.A . and diameters which were determined by eyes, our data has no selecti on effect owing to the instrument measurements. Within our searching r egion, this might be the largest and relatively complete photometric d atabase published so far for investigating the spatial orientation of the spin vectors of galaxies in the Virgo cluster.